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IEC 61158-3-24:2023 ed2.0

Действует
Industrial communication networks - Fieldbus specifications - Part 3-24: Data-link layer service definition - Type 24 elements — 40 стр.
IEC 61158-3-24:2023 provides common elements for basic time-critical messaging communications between devices in an automation environment. The term "time-critical" is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level of certainty. Failure to complete specified actions within the time-window risks failure of the applications requesting the actions, with attendant risk to equipment, plant and possibly human life.
This document defines in an abstract way the externally visible service provided by the Type 24 fieldbus data-link layer in terms of
the primitive actions and events of the service;
the interrelationship between these actions and events, and their valid sequences;
the parameters associated with each primitive action and event, and the form which they take.
ICS
35.110 Networking. Including local area networks (LAN), metropolitan area networks (MAN), wide area networks (WAN), etc. / Организация сети
35.100.20 Data link layer / Уровень звена данных
25.040.40 Industrial process measurement and control / Измерение и контроль производственного процесса